<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<br><!--强制让文字换行-->
<hr><!--水平线标签-->

<b>加粗</b>
<strong>加粗</strong>

<u>下划线</u>
<ins>下划线</ins>

<i>倾斜</i>
<em>倾斜</em>

<s>删除线</s>
<del>删除线</del>

</body>
</html>
